#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Time    : 2022/5/11 20:47
# @Author  : Yizheng Dai
# @Email   : 387942239@qq.com
# @File    : treenode.py

class TreeNode(object):
    def __init__(self, val=0, left=None, right=None):
        self.val = val
        self.left = left
        self.right = right